.loading {
    position: fixed;
    z-index: 999;
    display: none;
    width: 100%;
    height: 100%;
    background-color: rgba(#fff, 0.8);
    .context {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }
    &.active {
        display: block;
    }
}
